Protection of personal data contained on an rfid-enabled device

ABSTRACT

A system for protecting personal data contained on an RFID-enabled device, suitable for use with an RFID system including an RFID reader configured to extract information from an RFID chip associated with the RFID-enabled device, includes a personal data protection system including a personal data protection device configured to prevent reading of the RFID chip associated with an RFID-enabled personal item.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of U.S. patent applicationSer. No. 16/126,448, filed on Sep. 10, 2018, which is a continuation ofU.S. patent application Ser. No. 15/445,328, filed on Feb. 28, 2017, nowU.S. Pat. No. 10,073,995, which claims the benefit of and priority toU.S. Provisional Patent Application No. 62/301,899, filed on Mar. 1,2016. The disclosures of all of the foregoing applications areincorporated in their entirety by reference herein.

BACKGROUND 1. Technical Field

The present disclosure relates to the use of radio-frequencyidentification (RFID) systems. More particularly, the present disclosurerelates to devices, systems and methods for protecting personal datacontained on an RFID-enabled device.

2. Discussion of Related Art

Contactless smartcards are increasingly available to consumers as analternative to magnetic strip cards as a convenient way for storingpersonal data. Contactless smartcards are credit-card sized cards withembedded integrated circuits (also referred to as ICs, chips, ormicrochips). The chips used in contactless smartcards can bemanufactured in a form called an RFID chip. RFID stands forRadio-Frequency IDentification. The acronym generally refers to smallelectronic devices that consist of a small chip and an antenna used totransmit data over radio frequency (RF) waves. Contactless smartcardsare sometimes referred to as RFID-enabled cards, chip cards, orintegrated circuit cards (ICCs).

Consumer RFID payment systems have been implemented that allowindividuals to make an electronic payment for purchases, whereby paymentcan be made by simply waving a contactless smartcard (or a key fob,etc.) in front of a reader. Whereas magnetic strip cards and contactsmartcards must come in physical contact with a reader, contactlesssmartcards can exchange information with a reader via magnetic, RF,infrared radiation or light. A typical RFID system is composed of threecomponents: a reader (or “interrogator”); an RFID device (or“transponder”); and a host computer. The RFID device is composed of anantenna coil (e.g., wire loop or printed-circuit loop antenna) and amicrochip that includes basic modulation circuitry and non-volatilememory. “Active” RFID devices are powered by batteries or other energysources. “Passive” RFID devices lack power sources of their own; thepower is supplied by the reader.

A multitude of contactless credit and debit cards, driver's licenses,transit cards, medical information cards, insurance cards, student IDcards, and all U.S. passports issued since 2006 as well as passportsfrom many other countries are equipped with RFID chips. RFID chips canstore all the personal data printed in a passport (e.g., name, birthdate, address and physical descriptors) as well as the data for anelectronic image of the passport photo. RFID-enabled credit cards canstore the authorized card-holder's name, address, account number as wellas the card expiration date on the RFID chip. Some smartcards includemath co-processors for performing complex encryption algorithms. Byvirtue of their ability to store data on an embedded microchip, alongwith the convenience of not having to swipe a card through a scanner, orhand it to a cashier, contactless smartcards likely will continue tofind new applications in the fields of banking, transportation,healthcare, insurance, social security, and other personal data.

In order to obtain the information contained on a smartcard, an RFIDreader is used to activate the RFID device with RF energy and to extractinformation from the RFID chip. Contactless smartcards do not typicallyhave an embedded power source. One common approach to providing power tothe embedded chip is via a modulated magnetic field that induces acurrent in an antenna coil, which is typically laminated as an internallayer of a smartcard. This allows the information to be obtained fromthe embedded chip.

The ability to control the personal information one reveals, and who canaccess that information, has become a growing concern as thatinformation is increasingly available electronically. Identity theft andidentity fraud are terms used to refer to crimes in which someonewrongfully obtains and uses another person's personal data in some waythat involves fraud or deception, typically for economic gain. In 2012,according to a report issued by the Bureau of Justice Statistics, 16.6million people fell victim to identity theft, amounting to financiallosses of $24.7 billion, paid by consumers and companies. Wirelessidentity theft, also known as contactless identity theft or RFIDidentity theft, is a form of identity theft wherein an individual'spersonal data is compromised via wireless devices.

Various methods and apparatus have been devised for shielding smartcardsfrom RF electromagnetic fields which impart energy to power the RFIDchip. One example of a reference that describes shielding smartcards isU.S. Pat. No. 7,482,925 assigned to Visa U.S.A. (herein “Visa”). Some ofthe embodiments described in Visa are temporary security measures toprotect and shield newly-issued smartcards during transport through themail to their owners, such as envelopes with metalized coatings andelectromagnetic-shielding stickers attached to smartcards. Visa alsodescribes a wallet with an “RF shield liner” configured to attenuate RFsignals within the operation frequency range of the contactless portableconsumer device contained inside a holding pocket when the wallet isfolded in a closed configuration.

If a smartcard is not shielded by an RF shielding enclosure, the RFIDchip can be powered up and accessed without the card holder's knowledge.Basically, anyone with an appropriately equipped scanner andsufficiently close access to the smartcard can activate it and read itscontents. In some cases, the unauthorized scanning of a smartcard may beaccidental, such as when the card holder is unaware that he has comewithin range of an active RFID reader. In other cases, the unauthorizedscanning of the card may be intentionally executed by a party with acovert reader who is seeking to obtain the card holder's personalinformation without their consent.

SUMMARY

Various embodiments of the present disclosure provide methods, devices,and systems for use in detection, prevention, protection against, and/orresponse to RFID identity theft.

According to an aspect of the present disclosure a personal dataprotection system is provided. The system is suitable for use with anRFID system including an RFID reader configured to extract informationfrom an RFID chip associated with the RFID-enabled device. The systemincludes a personal data protection system including a personal dataprotection device configured to prevent reading of the RFID chipassociated with an RFID-enabled personal item.

According to another aspect of the present disclosure a method ofprotecting personal data is provided. The method includes providing apersonal data protection device configured to detect a carrier signal ofan RFID reader and, in response thereto, to prevent reading of an RFIDchip associated with an RFID-enabled personal item. If it is determinedthat the carrier signal of an RFID reader has been detected, then thepersonal data protection device is activated. Upon activation of thepersonal data protection device, one or more signals are emitted toprevent reading of the RFID chip associated with the RFID-enabledpersonal item.

According to another aspect of the present disclosure a method ofprotecting personal data is provided and includes providing a holderhaving a pocket configured to receive an RFID-enabled personal itemtherein and configured to transmit an alert signal when the RFID-enabledpersonal item is removed from the pocket. The holder includes a sensorand a resilient biasing member configured to bias the RFID-enabledpersonal item against the sensor such that removal of the RFID-enabledpersonal item from the pocket causes the sensor to transmit the alertsignal. If it is determined that the alert signal has been transmitted,then a personal data protection device is activated. The personal dataprotection device is configured to prevent reading of an RFID chipassociated with the RFID-enabled personal item.

In any of the aspects, the holder may be a wallet, a purse, a passportholder, or organizer configured to hold an RFID-enabled device.

In any of the aspects, upon activation of the personal data protectiondevice, one or more potential sources of the carrier signal areidentified. In any of the aspects, the one or more potential sources ofthe carrier signal are electronically tagged.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects and features of the presently-disclosedmethods, devices, and systems for protecting personal data contained onan RFID-enabled device will become apparent to those of ordinary skillin the art when descriptions of various embodiments thereof are readwith reference to the accompanying drawings, of which:

FIG. 1 is a schematic view of an RFID system including an RFID device, areader, and a host computer in accordance with an embodiment of thepresent disclosure;

FIG. 2 is a schematic view of an RFID device coupled to a key ring inaccordance with an embodiment of the present disclosure;

FIG. 3 is a perspective view, partially shown in phantom lines, of apersonal data protection system for use with RFID-enabled devicesassociated with a first person, and showing a covert RFID readerassociated with a second person, in accordance with an embodiment of thepresent disclosure;

FIG. 4 is a perspective view of a personal data protection system,partially shown in phantom lines, for use with RFID-enabled devicesassociated with a first person in accordance with another embodiment ofthe present disclosure;

FIG. 5 is a schematic view of a holder with credit-card sized pockets,showing an RFID-enabled card retained in a first pocket, and a resilientbiasing member, shown in phantom lines, associated with a first wall ofthe first pocket in accordance with an embodiment of the presentdisclosure;

FIG. 6 is a perspective view of the personal data protection system ofFIG. 4 configured in an active-protection enabled state in accordancewith an embodiment of the present disclosure;

FIG. 7 is a schematic view of the holder of FIG. 5, showing theRFID-enabled card removed from the first pocket, the holder including asensor, shown in phantom lines, associated with a second wall of thefirst pocket in accordance with an embodiment of the present disclosure;

FIG. 8 is a schematic view of a passport holder, showing an RFID-enabledpassport, partially shown in phantom lines, retained in a pocket of thepassport holder, and a resilient biasing member, shown in phantom lines,associated with a first wall of the pocket in accordance with anembodiment of the present disclosure;

FIG. 9 is a perspective view of the passport holder of FIG. 8 showingthe passport removed from the pocket, the passport holder including asensor, shown in phantom lines, associated with a second wall of thepocket in accordance with an embodiment of the present disclosure;

FIG. 10 is a flowchart illustrating a method of protecting personal datain accordance with an embodiment of the present disclosure; and

FIG. 11 is a flowchart illustrating a method of protecting personal datain accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION

Hereinafter, embodiments of methods, devices, and systems for protectingpersonal data contained on an RFID-enabled device of the presentdisclosure are described with reference to the accompanying drawings.Like reference numerals may refer to similar or identical elementsthroughout the description of the figures. It is to be understood thatin some instances various aspects of the electronic devices may be shownschematically or may be shown exaggerated or altered to facilitate anunderstanding of the presently-disclosed personal data protection systemembodiments. As shown in the drawings and as used in this description,and as is traditional when referring to relative positioning on anobject, the term “proximal” refers to that portion of the apparatus, orcomponent thereof, closer to the user and the term “distal” refers tothat portion of the apparatus, or component thereof, farther from theuser.

This description may use the phrases “in an embodiment,” “inembodiments,” “in some embodiments,” or “in other embodiments,” whichmay each refer to one or more of the same or different embodiments inaccordance with the present disclosure.

As it is used in this description, “personal data” generally refers toany information relating to an identified or identifiable person. As itis used in this description, “an identifiable person” generally refersto one who can be identified, either directly or indirectly, byreference to an identification number or to one or more factors specificto the individual's physical, physiological, mental, economic, cultural,or social identity. As used herein, “personally identifiableinformation” generally refers to any information that can be used on itsown or in conjunction with other information to identify, contact, orlocate a person, or to identify an individual in context. Thisinformation can be maintained in either paper, electronic or othermedia. For the purposes of this description, the terms “personal data”and “personally identifiable information” are used interchangeablyherein, and may include, for example, name, mailing and home address,email address, telephone number, social security number, date of birth,birthplace, driver's license number, credit card numbers, nationalidentification number, alien registration number, passport number,employer or taxpayer identification number, unique biometric data,electronic identification number or routing code, telecommunicationidentifying information, or other identifying number or code.

As used herein, the terms “carrier signal” and “carrier” refer to a wavethat is intended to be modulated. As it is used in this description,“modulation” generally refers to the alteration or modification of anyelectronic parameter by another. Characteristics of the carrier that maybe modulated include the amplitude and phase angle. Modulation by anundesirable signal is referred to as “cross modulation.”

Various embodiments of the present disclosure provide methods, devices,and systems for use in detection, prevention, protection against, and/orresponse to RFID identity theft. Various personal data protection systemembodiments described herein utilize RFID system components. RFIDsystems described herein may employ either far-field technology, inwhich the distance between the RFID reader and the RFID device is largecompared to the wavelength of the carrier signal, or near-fieldtechnology, in which the operating distance is less than one wavelengthof the carrier signal, to facilitate communication between the readerand the RFID device. In far-field applications, the reader generates andtransmits an RF signal via an antenna assembly to all RFID deviceswithin range of the antenna assembly. RFID devices that receive the RFsignal respond to the reader, e.g., using a backscattering technique inwhich the RFID device modulates and reflects the received RF signal. Innear-field applications, the reader and RFID device communicate viamutual inductance between corresponding reader and RFID deviceinductors.

RFID-enabled devices (e.g., banking card 70 shown in FIGS. 3 and 5)described herein may conform to the standards of standard-setting bodiessuch as international standard ISO 7810, including the commonly usedID-1 format, ID-2, ID-3 and ID-1000 formats. The ID-1 format specifies asize of 85.60×53.98 mm (3.370×2.125 in), which is commonly used forbanking cards (ATM cards, credit cards, debit cards, etc.) and also fordriving licenses in many countries. ISO 7816 defines ID-1 identificationcards with an embedded chip and contact surfaces for power, clock,reset, and serial-data signals. ISO 14443 defines identification cardswith an embedded chip and a magnetic loop antenna that operates at 13.56MHz (RFID). International Civil Aviation Organization (ICAO) standardsfor Machine Readable Travel Documents (MRTDs) specify acryptographically signed file format and authentication protocol forstoring biometric features (e.g., photos of an individual's face,fingerprint and/or iris) in ISO 14443 RFID chips. These and other cardformats may be applied to embodiments of the present disclosure. It willbe understood by persons skilled in the art that the embodimentsdescribed herein are intended to use any other suitable standards thatare developed in the future.

In FIG. 1, an RFID system 1 is schematically illustrated and includes anRFID device 2, an RFID reader 3, and a processing system 4. RFID reader3 (also referred herein to as “reader 3”) is communicatively coupled tothe processing system 4. An embodiment of the RFID device 2 is shown inmore detail in FIG. 2. It is to be understood, however, that other RFIDdevice embodiments (e.g., banking card 70 shown in FIGS. 5 and 7) mayalso be used.

Reader 3 may be fixed, mobile, wireless, or handheld. In someembodiments, the reader 3 includes RF transmission section including anRF carrier generator, a receiving section, and a data decoding sections.Reader 3 may include one or more antennas assemblies configured to beenergized with a carrier signal. Antenna assemblies can take a varietyof shapes and sizes, e.g., depending on the environment or the requiredrange. Antenna assemblies can be mounted on a variety of surfaces orphysical objects, or on building structures, e.g., built into a doorframe to accept data from persons or objects passing through. In someembodiments, the RFID system 1 includes an RFID subsystem coupled to theantenna assembly and configured to process data provided by the antennaassembly. RFID system 1 may additionally, or alternatively, include auser interface configured to provide information to the user of theprocessing system 4.

Processing system 4 may include any type of computing device,computational circuit, or any type of processor or processing circuitcapable of executing a series of instructions that are stored in amemory. In some embodiments, as shown in FIG. 1, the processing system 4is communicatively coupled to a network 5, e.g., the Ethernet or othercomputer networking technologies.

When the RFID reader 3 is operating and the RFID device 2 is within therange of the antenna assembly of the RFID reader 3, the RFID device 2 isenergized by a time-varying electromagnetic RF wave (carrier signal)that is transmitted by the RFID reader 3. In some embodiments, the RFIDdevice 2 is configured to divide the carrier frequency down to generatean on-board clock for state machines, counters, etc., and to derive thedata transmission bit rate for data returned to the reader 3.

FIG. 2 shows an embodiment of the RFID device 2 of FIG. 1 that includesan antenna coil 28 (wire loop antenna) attached to a microchip 26. Whenan RF field passes through the antenna coil 28 of the RFID device 2,there is an AC voltage generated across the coil 28. This voltage isrectified to supply power to the microchip 26, and the informationstored in the non-volatile memory of the microchip 26 is transmitted toan RFID reader (e.g., reader 3 shown in FIG. 1).

FIG. 3 shows a personal data protection system 10 for use withRFID-enabled devices associated with a person “P,” such as anRFID-enabled key fob 60, a wallet “W” containing one more RFID-enabledcards (e.g., banking card 70 shown in FIG. 7), a personal mobile device40 (e.g., a smartphone, tablet, or e-reader), and/or an RFID-enableddevice “D” worn on the wrist of the person “P.” Personal data protectionsystem 10 includes a personal data protection device 30 (also referredherein to as “device 30”) including a power source, e.g., a lithiumbattery, and one or more antennas. Device 30 is capable of detecting acarrier signal transmitted from an RFID reader (e.g., reader 3 shown inFIG. 1). Device 30 generally includes a first and a second mode ofoperation, as described herein. In some embodiments, the device 30 isconfigured to communicate with an electronic tagging system 9, which mayinclude a beacon and/or a camera.

In some embodiments, the device 30 is configured to be automaticallyswitchable from a first mode of operation to a second mode of operationbased on the detection of the carrier signal. In some embodiments, thedevice 30 is configured to be automatically switchable from a firstoperation mode, wherein the device 30 is capable of detecting theemission of a carrier signal by an RFID reader, to a second operationmode, wherein the device 30 is capable of blocking or otherwisepreventing the carrier signal from reaching the RFID-enabled device(s)associated with the person “P” and/or capable of preventing a modulatedsignal transmitted by an RFID-enabled device associated with the person“P” from being clearly received by the RFID reader 3. Device 30 mayadditionally, or alternatively, be configured to allow the person “P” tomanually set, or reset, the mode of operation of the device 30, from thefirst operation mode to the second operation mode (also referred toherein as the “active-protection enabled mode”) and/or from the secondoperation mode to the first operation mode.

In some embodiments, the device 30 is capable of monitoring its powersource, and may be configured to activate an indicatory device, e.g.,LED (Light Emitting Diode) or audible alarm, to alert the person “P” ofa low-power condition. In some embodiments, as shown in FIG. 1, thedevice 30 is configured to be attached to a belt 50 worn by a person“P.” For the purposes herein, the device 30 is described in terms of astandalone unit; however, it is contemplated that a portable wirelessdevice, e.g., a smartphone or laptop computer, may be configured toperform the functionality of the device 30.

FIGS. 4 through 7 show a personal data protection system 100 for usewith various RFID-enabled devices (e.g., banking card 70 shown in FIGS.5 and 7). System 100 generally includes a personal data protectiondevice 90 and a holder 80, which may be configured with RF shieldingmaterial and includes one or more pockets configured to securely holdone or more RFID-enabled personal items. Personal data protection system100 is configured to allow a person “P” to remove an RFID-enabledpersonal item (e.g., banking card 70) from the holder 80, whereby thepersonal data contained on the RFID-enabled personal item is protectedwithin a predetermined range of the personal data protection device 90(also referred herein to as “device 90”). This allows the person “P,”e.g., waiting in line at Dunkin Donuts, to safely remove theRFID-enabled personal item from the holder 80, whereby the RFID device(e.g., RFID device 72 associated with banking card 70) cannot be clearlyread until the person “P” extends the banking card 70 towards theauthorized RFID reader, such that the RFID device 72 is temporarilypositioned outside of the predetermined range of the device 90.

In some embodiments, the holder 80 is configured to transmit an alertsignal when an RFID-enabled personal item (e.g., banking card 70) isremoved from a pocket, and may include a sensor 82 and a resilientbiasing member 81 configured to bias the RFID-enabled personal itemagainst the sensor 82 such that removal of the RFID-enabled personalitem from the pocket causes the sensor 82 to transmit the alert signal.Device 90 is configured to detect the alert signal. Upon detection ofthe emission of the alert signal from the holder 80, the device 90activates an “active-protection enabled mode,” wherein the device 90 iscapable of blocking or otherwise preventing a carrier signal fromreaching the RFID-enabled personal item 70 and/or capable of preventinga modulated signal transmitted by the RFID-enabled personal item 70 frombeing clearly received by an RFID reader (e.g., covert RFID reader 3associated with a criminal “C” shown in FIG. 3). Device 90 is similar tothe device 30 shown in FIG. 3, except for the capability to detect theemission of the alert signal from the holder 80, and further descriptionof the like elements is omitted in the interests of brevity.

FIGS. 8 and 9 show a passport holder 810 for use with the personal dataprotection device 90 of FIGS. 3 and 4. Passport holder 810 is configuredto securely hold a passport 870 that includes an RFID device 872. Insome embodiments, the passport holder 810 includes a single pocketdefined between a first wall 811 and a second wall 812 configured toreceive the passport 870 therein. One or both of the first wall 811 andthe second wall 812 may be configured with RF shielding material.

When used in conjunction with the device 90, the passport 870 may beremoved from the passport holder 810 and the personal data contained onthe RFID device 872 is protected within a predetermined range of thedevice 90. Passport holder 810 is configured to transmit an alert signalwhen the passport 870 is removed from a pocket thereof, and may includea sensor 890 and a resilient biasing member 880 configured to bias thepassport 870 against the sensor 890 such that removal of the passport870 from the pocket causes the sensor 890 to transmit the alert signal.In some embodiments, as shown in FIGS. 8 and 9, the resilient biasingmember 880 is associated with a first wall 811, and the sensor 890 isassociated with the second wall 812.

Hereinafter, methods of protecting personal data contained on anRFID-enabled device in accordance with the present disclosure, aredescribed with reference to FIGS. 10 and 11. It is to be understood thatthe steps of the methods provided herein may be performed in combinationand in a different order than presented herein without departing fromthe scope of the disclosure.

FIG. 10 is a flowchart illustrating a method of protecting personal datacontained on an RFID-enabled device according to an embodiment of thepresent disclosure. In step 1010, a personal data protection device 30is provided. The personal data protection device 30 is configured todetect a carrier signal of an RFID reader 3 and, in response thereto, toprevent reading of an RFID device 72 associated with an RFID-enabledpersonal item 70.

In step 1020, if it is determined that the carrier signal of an RFIDreader 3 has been detected, then the personal data protection device 30is activated. In some embodiments, the device 30 automatically switchesfrom a first operation state, wherein the device 30 is capable ofdetecting the emission of a carrier signal by an active RFID reader 3,to a second operation state, wherein the device 30 is capable ofblocking or otherwise preventing the carrier signal from reaching theRFID device 72 and/or capable of preventing a modulated signaltransmitted by RFID device 72 from being clearly received by the RFIDreader 3.

In step 1030, upon activation of the personal data protection device 30,one or more signals are emitted. The emitted signals are configured toprevent reading of the RFID device 72 associated with the RFID-enabledpersonal item 70.

In step 1040, upon activation of the personal data protection device 30,one or more potential sources of the carrier signal are identified.

In step 1040, the one or more potential sources of the carrier signalare electronically tagged.

FIG. 11 is a flowchart illustrating a method of protecting personal datacontained on an RFID-enabled device according to an embodiment of thepresent disclosure. In step 1110, a holder 80 is provided that includesa pocket configured to receive an RFID-enabled personal item (e.g.,banking card 70) therein. The holder includes a sensor 82 and aresilient biasing member 81 configured to bias the RFID-enabled personalitem 70 against the sensor 82 such that removal of the RFID-enabledpersonal item 70 from the pocket causes the sensor 82 to transmit analert signal.

In step 1120, if it is determined that the alert signal has beentransmitted, automatically activating a personal data protection device90 configured to prevent reading of an RFID device 72 associated withthe RFID-enabled personal item within a predetermined range of thepersonal data protection device 90.

Although embodiments have been described in detail with reference to theaccompanying drawings for the purpose of illustration and description,it is to be understood that the inventive processes and apparatus arenot to be construed as limited thereby. It will be apparent to those ofordinary skill in the art that various modifications to the foregoingembodiments may be made without departing from the scope of thedisclosure.

1-6. (canceled)
 7. A system for protecting personal data contained on a radio frequency identification (RFID) device, the system comprising: a data protection device configured to detect an emission of a carrier signal by an RFID reader communicating with an RFID device; and an electronic tagging system including a camera, the electronic tagging system in communication with the data protection device and configured to electronically tag a potential source of the carrier signal via the camera upon detection of the emission of the carrier signal by the RFID reader.
 8. The system according to claim 7, wherein the data protection device is selectively switchable between a first mode, in which the data protection device is configured to detect the emission of the carrier signal, and a second mode, in which the data protection device is configured to prevent reading of the RFID device.
 9. The system according to claim 8, wherein the data protection device is configured to switch between the first mode and the second mode in response to detection of the emission of the carrier signal.
 10. The system according to claim 8, wherein the data protection device includes a user-actuatable switch configured to switch between the first mode and the second mode.
 11. The system according to claim 7, wherein the data protection device further includes a power source.
 12. The system according to claim 11, wherein the data protection device is further configured to activate an indicatory device when the power source is low.
 13. The system according to claim 12, wherein the indicatory device is a light emitting diode (LED) or an audible alarm.
 14. A method of protecting data, the method comprising: detecting, at a data protection device, emission of a carrier signal by an RFID reader communicating with an RFID device; emitting a signal at the data protection device to prevent reading of the RFID device; and signaling a camera by the data protection device to tag one or more potential sources of the carrier signal upon detection of the emission of the carrier signal by the RFID reader.
 15. The method according to claim 14, wherein the data protection device is selectively switchable between a first mode, in which the data protection device is configured to detect the emission of the carrier signal, and a second mode, in which the data protection device is configured to prevent reading of the RFID device.
 16. The method according to claim 15, further comprising switching between the first mode and the second mode in response to detection of the emission of the carrier signal.
 17. The method according to claim 15, wherein the data protection device includes a user-actuatable switch configured to switch between the first mode and the second mode. 